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在中学化学的范围内,接触到的物质以及化学反应后产生的物质,都有相同、相似或不同的特殊颜色。这些物质,以它们所呈现出的特殊颜色给我们定性检验、判别概念、以及记忆、使用提供了依据和方便。我们在教学过程中,对于五颜六色的物质,一方面尽可能地让学生直接观察实物,另一方面,我们还将有色物质加以归纳,让学生进一步作对比观察。在对比观察之后,教师再适当讲解,并和学生一起综合分析,这样.就能使学生对于纷纭复杂的有色物质产生深刻的印象。下面,将常见物质的特殊颜色,分类列出,
In the context of middle school chemistry, the substances that come into contact with and the substances that result from chemical reactions all have the same, similar, or different special colors. These substances, based on their special colors, provide us with a basis for qualitative testing, discriminating concepts, and providing memory and use. In the teaching process, we try to directly observe the physical objects on the one hand as far as possible for the colorful materials. On the other hand, we also summarize the non-ferrous materials and let the students make comparative observations. After the comparative observation, the teacher will explain it properly and analyze it with the students. This will enable the students to have a deep impression on the complex colored matter. Below, the special colors of common substances are listed and classified.